User guide

3 - Creating a Daikin VRV System
Page 9
Daikin VRV Systems Plugin
VE2012 User Guide
b. The “Peak sum of the fan coil loads” sizes the condenser based on the assumption that
all the fan coils will at some point in time demand full capacity which adds in a safety
factor over and above the “Oversize system” setting. Please note that an oversized
system will cause a reduction in efficiency.
G) Loads. This option lets you select between CIBSE or ASHRAE loads calculations
H) Fan coil unit type. This button allows the selection of the fan coil unit type. A mix of fan coil
types can be made once the loads have been calculated, but by entering the most commonly
anticipated fan coil type beforehand you can save a considerable amount of time, especially
on larger projects.
I) Peak loads and Autosizing. This button performs the loads calculations for each zone and
selects an appropriate fan coil(s) for each space and a suitable condenser based on the
options previously selected.
On completion of the loads calculations the condenser and fan coil selections are presented.
The selected condenser displays the Daikin model reference, when multiple VRV systems have been
created, click each condenser in turn to view the associated fan coil information in the System & Fan
Coil Unit Data dialogue.
The System & Fan Coil Unit Data dialogue displays the relevant information for each room or zone.
The “Total loads” tab includes the sensible plus latent loads followed by the sensible loads and
heating loads.